Bluetooth earphone based on aptX-LL coding and decoding and transmission method thereof

A technology of bluetooth earphones and transmission methods, applied in stereo communication earphones, speech analysis, stereo circuit arrangement, etc., capable of solving problems such as audio quality degradation, audio transmission distortion, and delay

Pending Publication Date: 2022-05-10
彭思超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To this end, the embodiment of the present invention provides a bluetooth earphone based on aptX-LL codec and its transmission method to solve the audio transmission distortion existing in the existing bluetooth earphones using SBC or AAC encoding format, there is a delay, and the sound source and playback Out of sync, severe audio quality degradation issues

Method used

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  • Bluetooth earphone based on aptX-LL coding and decoding and transmission method thereof
  • Bluetooth earphone based on aptX-LL coding and decoding and transmission method thereof

Examples

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Embodiment 1

[0026] Such as figure 1 As shown, this embodiment proposes a bluetooth headset based on aptX-LL codec, the bluetooth headset includes a bluetooth chip and a speaker connected to the bluetooth chip, an antenna and a power module, the bluetooth chip is used to obtain the The audio signal is encoded and decoded, and the Bluetooth protocol is used for data transmission through the antenna. The speaker is used to play the decoded audio, and the power module is used to supply power to the Bluetooth headset.

[0027] In this embodiment, the bluetooth earphone also includes an LED light connected to the bluetooth chip, and the LED light is used to indicate the working status of the bluetooth earphone, including red and blue two-color LED lights. The bluetooth earphone also includes the button that is connected with bluetooth chip, and the button is used for obtaining button operation instruction, and there are three buttons in the present embodiment. The bluetooth earphone also inclu...

Embodiment 2

[0032] Corresponding to the above-mentioned embodiment 1, this embodiment proposes a transmission method of a bluetooth headset based on the aptX-LL codec, the method comprising:

[0033] The terminal device establishes a connection with the Bluetooth headset through the USB Bluetooth adapter, and sends the terminal audio data to the Bluetooth headset using the Bluetooth protocol in the aptX-LL encoding format through the USB Bluetooth adapter;

[0034] The Bluetooth headset aptX-LL decodes the received encoded audio data into a digital audio signal, and converts the digital audio signal into an analog audio signal for playback through the speaker.

[0035] Further, the method also includes:

[0036] After the Bluetooth headset performs aptX-LL encoding on the external voice signal collected by the microphone, it uses the Bluetooth protocol to send it to the USB Bluetooth adapter, and then transmits it to the terminal device through the USB Bluetooth adapter.

[0037] Further...

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Abstract

The embodiment of the invention discloses a Bluetooth earphone based on aptX-LL coding and decoding and a transmission method of the Bluetooth earphone based on aptX-LL coding and decoding, a 5.0 Bluetooth transmission technology of a high-pass low-delay lossless audio coding format aptX Low Latency is applied, so that the sound source loss in the transmission process is reduced to the minimum, and the sound source loss is close to the CD sound quality; the time delay is reduced to about 40MS; and when the A2DP protocol and the HFP protocol take effect at the same time, the sound quality of the A2DP is kept at 44.1 K or 48K.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of bluetooth earphones, in particular to a bluetooth earphone based on aptX-LL encoding and decoding and a transmission method thereof. Background technique [0002] Bluetooth earphones are exactly the application of bluetooth technology on hands-free earphones, so that users can avoid the entanglement of annoying wires and talk easily in various ways. Since the advent of Bluetooth headsets, it has always been a good tool for mobile business families to improve efficiency. The Bluetooth headset is based on the mobile phone supporting the A2DP Bluetooth stereo protocol. Only when the mobile phone supports the A2DP Bluetooth stereo protocol can the stereo Bluetooth headset be connected to enjoy Bluetooth headset music. And there are AVRCP (control function), HFP (hands-free call function). [0003] Existing Bluetooth headsets use SBC or AAC encoding format when using the A2DP protocol. ...

Claims

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Application Information

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IPC IPC(8): H04R5/033H04R5/04H04W4/80G10L19/00
CPCH04R5/033H04R5/04G10L19/0017H04W4/80
Inventor 彭思超
Owner 彭思超
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